<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="登录地址" prop="ipaddr">
        <el-input v-model="queryParams.ipaddr" placeholder="请输入登录地址" clearable style="width: 240px;"
          @keyup.enter.native="handleQuery" />
      </el-form-item>
      <el-form-item label="用户名称" prop="userName">
        <el-input v-model="queryParams.userName" placeholder="请输入用户名称" clearable style="width: 240px;"
          @keyup.enter.native="handleQuery" />
      </el-form-item>
      <el-form-item label="状态" prop="status">
        <el-select v-model="queryParams.status" placeholder="登录状态" clearable style="width: 240px">
          <el-option v-for="dict in dict.type.sys_common_status" :key="dict.value" :label="dict.label"
            :value="dict.value" />
        </el-select>
      </el-form-item>
      <el-form-item label="登录时间">
        <el-date-picker v-model="dateRange" style="width: 240px" value-format="yyyy-MM-dd HH:mm:ss" type="daterange"
          range-separator="-" start-placeholder="开始日期" end-placeholder="结束日期"
          :default-time="['00:00:00', '23:59:59']"></el-date-picker>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <!-- <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['monitor:logininfor:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          @click="handleClean"
          v-hasPermi="['monitor:logininfor:remove']"
        >清空</el-button>
      </el-col> -->
      <el-col :span="1.5">
        <el-button type="primary" plain icon="el-icon-unlock" size="mini" :disabled="single" @click="handleUnlock"
          v-hasPermi="['monitor:logininfor:unlock']">解锁</el-button>
      </el-col>
      <!-- <el-col :span="1.5">
        <el-button type="warning" plain icon="el-icon-download" size="mini" @click="handleExport"
          v-hasPermi="['monitor:logininfor:export']">导出Excel</el-button>
      </el-col> -->
      <el-col :span="1.5">
        <el-button type="warning" plain icon="el-icon-download" size="mini" @click="handleExportPDF"
          v-hasPermi="['monitor:logininfor:export']">导出PDF</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table ref="tables" v-loading="loading" :data="list" @selection-change="handleSelectionChange"
      :default-sort="defaultSort" @sort-change="handleSortChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="访问编号" align="center" prop="infoId" />
      <el-table-column label="用户名称" align="center" prop="userName" :show-overflow-tooltip="true" sortable="custom"
        :sort-orders="['descending', 'ascending']" />
      <el-table-column label="登录地址" align="center" prop="ipaddr" width="130" :show-overflow-tooltip="true" />
      <el-table-column label="登录地点" align="center" prop="loginLocation" :show-overflow-tooltip="true" />
      <el-table-column label="浏览器" align="center" prop="browser" :show-overflow-tooltip="true" />
      <el-table-column label="操作系统" align="center" prop="os" />
      <el-table-column label="登录状态" align="center" prop="status">
        <template slot-scope="scope">
          <dict-tag :options="dict.type.sys_common_status" :value="scope.row.status" />
        </template>
      </el-table-column>
      <el-table-column label="操作信息" align="center" prop="msg" :show-overflow-tooltip="true" />
      <el-table-column label="登录日期" align="center" prop="loginTime" sortable="custom"
        :sort-orders="['descending', 'ascending']" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.loginTime) }}</span>
        </template>
      </el-table-column>
    </el-table>

    <pagination v-show="total > 0" :total="total" :page.sync="queryParams.pageNum" :limit.sync="queryParams.pageSize"
      @pagination="getList" />

    <!-- 创建临时表格 -->
    <div style="margin-top: 10px;">
      <div class="temForm"></div>
    </div>

  </div>
</template>

<script>
import { list, delLogininfor, cleanLogininfor, unlockLogininfor } from "@/api/monitor/logininfor";

// 浏览器中对网页进行截图，将这些截图转换为图像格式
import html2canvas from 'html2canvas';
// 生成 PDF 的库
import jsPDF from 'jspdf';
import 'jspdf-autotable';

export default {
  name: "Logininfor",
  dicts: ['sys_common_status'],
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 选择用户名
      selectName: "",
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 表格数据
      list: [],
      // 日期范围
      dateRange: [],
      // 默认排序
      defaultSort: { prop: 'loginTime', order: 'descending' },
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        ipaddr: undefined,
        userName: undefined,
        status: undefined
      }
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询登录日志列表 */
    // getList() {
    //   this.loading = true;
    //   list(this.addDateRange(this.queryParams, this.dateRange)).then(response => {
    //     this.list = response.rows;
    //     this.total = response.total;
    //     this.loading = false;
    //   }
    //   );
    // },
    async getList() {
      this.loading = true;
      try {
        const response = await list(this.addDateRange(this.queryParams, this.dateRange));
        if (response && response.rows) {
          this.list = response.rows;
          this.total = response.total;
        } else {
          console.error('返回数据格式不正确:', response);
          this.list = [];
          this.total = 0;
        }
      } catch (error) {
        console.error('获取数据出错:', error);
        this.list = [];
        this.total = 0;
      } finally {
        this.loading = false;
      }
      return this.list;
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.dateRange = [];
      this.resetForm("queryForm");
      this.queryParams.pageNum = 1;
      this.$refs.tables.sort(this.defaultSort.prop, this.defaultSort.order)
    },
    /** 多选框选中数据 */
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.infoId)
      this.single = selection.length != 1
      this.multiple = !selection.length
      this.selectName = selection.map(item => item.userName);
    },
    /** 排序触发事件 */
    handleSortChange(column, prop, order) {
      this.queryParams.orderByColumn = column.prop;
      this.queryParams.isAsc = column.order;
      this.getList();
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const infoIds = row.infoId || this.ids;
      this.$modal.confirm('是否确认删除访问编号为"' + infoIds + '"的数据项？').then(function () {
        return delLogininfor(infoIds);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => { });
    },
    /** 清空按钮操作 */
    handleClean() {
      this.$modal.confirm('是否确认清空所有登录日志数据项？').then(function () {
        return cleanLogininfor();
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("清空成功");
      }).catch(() => { });
    },
    /** 解锁按钮操作 */
    handleUnlock() {
      const username = this.selectName;
      this.$modal.confirm('是否确认解锁用户"' + username + '"数据项?').then(function () {
        return unlockLogininfor(username);
      }).then(() => {
        this.$modal.msgSuccess("用户" + username + "解锁成功");
      }).catch(() => { });
    },
    /** 导出按钮操作(原始代码，只能导出Execl) */
    handleExport() {
      this.download('monitor/logininfor/export', {
        ...this.queryParams
      }, `logininfor_${new Date().getTime()}.xlsx`)
    },

    /** 导出按钮操作 */
    async handleExportPDF() {
      const allData = [];
      const totalPages = Math.ceil(this.total / this.queryParams.pageSize);
      for (let page = 1; page <= totalPages; page++) {
        this.queryParams.pageNum = page;
        const data = await this.getList();
        allData.push(...data);
      }

      const doc = new jsPDF();
      const margin = 10;
      const pdfWidth = doc.internal.pageSize.getWidth();
      const pdfHeight = doc.internal.pageSize.getHeight();

      const rowsPerPage = 5 * this.queryParams.pageSize;
      for (let i = 0; i < allData.length; i += rowsPerPage) {
        const pageData = allData.slice(i, i + rowsPerPage);

        // 创建临时表格
        const tempTable = document.createElement('table');
        tempTable.style.width = '100%';

        // 创建标题元素
        const titleDiv = document.createElement('div');
        titleDiv.style.textAlign = 'center';
        titleDiv.style.fontSize = '27px';
        titleDiv.style.marginBottom = '10px';
        const startDate = this.dateRange.length > 0 ? this.dateRange[0].slice(0, 10) : '';
        const endDate = this.dateRange.length > 1 ? this.dateRange[1].slice(0, 10) : '';
        const titleText = `登录日志 (统计时间：${startDate}~${endDate})`;
        titleDiv.textContent = titleText;

        const thead = document.createElement('thead');
        const headerRow = document.createElement('tr');
        const headers = ['访问编号', '用户名称', '登录地址', '登录地点', '浏览器', '操作系统', '登录状态(0:成功/1:失败)', '操作信息', '登录日期'];
        headers.forEach(headerText => {
          const th = document.createElement('th');
          th.textContent = headerText;
          th.style.fontSize = '25px'; // 添加表头字体大小
          th.style.textAlign = 'center'; // 表头内容居中对齐
          headerRow.appendChild(th);
        });
        // 给表头行添加上下边框
        headerRow.style.borderTop = '1px solid #dfe6ec';
        headerRow.style.borderBottom = '1px solid #dfe6ec';
        headerRow.style.lineHeight = '2'; // 添加表头
        thead.appendChild(headerRow);
        tempTable.appendChild(thead);

        const tbody = document.createElement('tbody');
        pageData.forEach(item => {
          const row = document.createElement('tr');
          // 给数据行添加下边框
          row.style.borderBottom = '1px solid #dfe6ec';
          const cells = [
            item.infoId,
            item.userName,
            item.ipaddr,
            item.loginLocation,
            item.browser,
            item.os,
            item.status,
            item.msg,
            this.parseTime(item.loginTime)
          ];
          cells.forEach(cellText => {
            const td = document.createElement('td');
            td.textContent = cellText;
            td.style.fontSize = '23px'; // 添加表格字体大小
            td.style.lineHeight = '1.8'; // 表格内增加行高以增加垂直间距
            td.style.textAlign = 'center'; // 表格内容居中对齐
            row.appendChild(td);
          });
          tbody.appendChild(row);
        });
        tempTable.appendChild(tbody);

        // 创建一个包含标题和表格的父元素
        const parentDiv = document.createElement('div');
        parentDiv.appendChild(titleDiv);
        parentDiv.appendChild(tempTable);

        const temForm = document.querySelector('.temForm');
        if (temForm) {
          temForm.appendChild(parentDiv);
        }

        const canvas = await html2canvas(parentDiv);
        const imgData = canvas.toDataURL('image/png');
        const imgProps = doc.getImageProperties(imgData);
        const newWidth = pdfWidth - 2 * margin;
        const newHeight = (imgProps.height * newWidth) / imgProps.width;

        if (i > 0) {
          doc.addPage();
        }

        doc.addImage(imgData, 'PNG', margin, margin, newWidth, newHeight);

        // 移除临时元素
        if (temForm) {
          temForm.removeChild(parentDiv);
        }
      }

      // doc.save(`logininfor_${new Date().getTime()}.pdf`);
      // 获取当前时间并格式化为 年月日时分秒
      const now = new Date();
      const year = now.getFullYear();
      const month = String(now.getMonth() + 1).padStart(2, '0');
      const day = String(now.getDate()).padStart(2, '0');
      const hour = String(now.getHours()).padStart(2, '0');
      const minute = String(now.getMinutes()).padStart(2, '0');
      const second = String(now.getSeconds()).padStart(2, '0');
      const currentTime = `${year}${month}${day}${hour}${minute}${second}`;

      const startDate = this.dateRange.length > 0 ? this.dateRange[0].slice(0, 10) : '';
      const endDate = this.dateRange.length > 1 ? this.dateRange[1].slice(0, 10) : '';
      const fileName = `登录日志(${startDate}~${endDate})_${currentTime}.pdf`;

      doc.save(fileName);
    }
  }
};
</script>
